The Keeper or Cup is excellent - I can really recommend it. I've been using it for over a year now and it did take a little while to get used to, but I wouldn't change back now. I also haven't had a yeast infection in all that time.

It's ideal for cycling as there's nothing exteral to rub or chafe and depending on flow I can leave mine in for 8 or 9 hours. It's also good for start and end of period because unlike tampons it only collects what's there and doesn't become dry and hard.

As for changing -as we're being frank I'll tell you what I do. I used to empty mine then rinse under the tap, but because the wash rooms at work don't have a cubical with basin this became a bit diffcult. Now, when I empy mine I pee on it to rinse it out ( which works suprisingly well). and give it a quick wipe with some loo roll. Urine is also sterile so what could be better. ( However, I do make sure I give it a good wash with soap and warm water twice a day)

I'm sure this would work quite well if you're in the middle of nowhere. Fortunately we don't have bears in England to worry about.!